Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quantos jogadores Pick têm uma Rodada menor que 13 e uma Posição de fullback?
 ###Tabelas: CREATE TABLE nfl_draft (nfl_draft_id AUTO_INCREMENT PRIMARY KEY, Round INT, Pick INT, Player VARCHAR, Position VARCHAR, School/Club Team VARCHAR) CREATE TABLE defunct_sites (defunct_sites_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Year Began VARCHAR, Registration VARCHAR, Userpics Free VARCHAR, Userpics Paid VARCHAR, Monthly Cost for Paid Account VARCHAR, Yearly Cost for Paid Account VARCHAR, Permanent Account VARCHAR) CREATE TABLE switzerland (switzerland_id AUTO_INCREMENT PRIMARY KEY, Internet Plan VARCHAR, Downstream VARCHAR, Upstream VARCHAR, Bandwidth Included VARCHAR, Price VARCHAR) CREATE TABLE table_of_intel_80579_processors (table_of_intel_80579_processors_id AUTO_INCREMENT PRIMARY KEY, sSpec number VARCHAR, Frequency VARCHAR, L2 cache VARCHAR, Mult. VARCHAR, Voltage VARCHAR, Socket VARCHAR, Release date VARCHAR, Part number(s) VARCHAR, Release price ( USD ) VARCHAR) CREATE TABLE economies_of_member_states (economies_of_member_states_id AUTO_INCREMENT PRIMARY KEY, Member State sorted by GDP VARCHAR, GDP in s billion of USD (2012) VARCHAR, GDP % of EU (2012) VARCHAR, Annual change % of GDP (2012) VARCHAR, GDP per capita in PPP US$ (2012) INT, Public Debt % of GDP (2013 Q1) VARCHAR, Deficit (-)/ Surplus (+) % of GDP (2012) VARCHAR, Inflation % Annual (2012) VARCHAR, Unemp. % 2013 M7 VARCHAR)  
SELECT COUNT Pick FROM nfl_draft WHERE Round < 13 AND Position = fullback